11051000556 has 24 divisors (see below), whose sum is σ = 25815921264. Its totient is φ = 3679344960.

The previous prime is 11051000503. The next prime is 11051000563. The reversal of 11051000556 is 65500015011.

It is a super-2 number, since 2×11051000556² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 529575 + ... + 550046.

It is an arithmetic number, because the mean of its divisors is an integer number (1075663386).

Almost surely, 2^11051000556 is an apocalyptic number.

It is an amenable number.

11051000556 is an abundant number, since it is smaller than the sum of its proper divisors (14764920708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11051000556 is a wasteful number, since it uses less digits than its factorization.

11051000556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080481 (or 1080479 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 24.

Adding to 11051000556 its reverse (65500015011), we get a palindrome (76551015567).

The spelling of 11051000556 in words is "eleven billion, fifty-one million, five hundred fifty-six", and thus it is an aban number.